.input {
    color: #fff;
    font-size: 0.9rem;
    background-color: transparent;
    width: 100%;
    box-sizing: border-box;
    padding-inline: 0.5em;
    padding-block: 0.7em;
    border: none;
    border-bottom: var(--border-height) solid var(--border-before-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }
  .input::placeholder {
    color: #dcdbdb;
  }
  
  .input-border {
    position: absolute;
    background: var(--border-after-color);
    width: 0%;
    height: 2px;
    bottom: 0;
    left: 0;
    transition: width 0.3s cubic-bezier(0.6, -0.28, 0.735, 0.045);
  }
  
  .input:focus {
    outline: none;
  }
  
  .input:focus + .input-border {
    width: 100%;
  }
  
  .form-control {
    position: relative;
    --width-of-input: 300px;
  }
  
  .input-alt {
    font-size: 1.2rem;
    padding-inline: 1em;
    padding-block: 0.8em;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  }
  
  .input-border-alt {
    height: 3px;
    background: linear-gradient(90deg, #FF6464 0%, #FFBF59 50%, #47C9FF 100%);
    transition: width 0.4s cubic-bezier(0.42, 0, 0.58, 1.00);
    width: 5%;
  }
  
  .input-alt:focus + .input-border-alt {
    width: 100%;
  }